I'm a little skeptical of that cultivar name.......odd it shows up so infrequently. I'd be more inclined to think it some pirated form of patented variegated Abelia x grandiflora, like Twist of Lime or Silver Anniversary.......interesting how often the box stores, a few mail order sources and some other lesser independent nurseries will "create" new varieties that are really just renamed patented varieties. Illegal as heck but it happens.

At any rate, virtually any variegated cultivar of A. x grandiflora I can think of will be relatively compact in height (2-3') but can spread out rather impressively (4-5'). And in warmer winter climates, these sizes can increase by about a third to half again. Tag sizes should be considered as guidelines only - never the gospel :-))

gardengal48, Thanks for the information. I think I will pass on buying this plant. I am zone 6 and that is how far it is hardy. I like to have at least zone 5. Also not being sure of the size is not helpful.
Brooks23

Woody plants vary hugely in size with differences in planting site conditions and propagation methods. And old examples can be very much bigger than the many other young ones more often encountered.

Much as both producers and consumers would like them to come out of a mold and remain comparatively unchanged afterward, they don't.

bboy, You are so right. i have the same buddleia in different part of the yard and the size is different in each place.

Since the one wholesale nursery in Texas seems to be effectively the only source of information online probably they came up with the 'Garden Star' name - whatever the history of the clone. The photo they used looks familiar, as though depicting originally another cultivar. But that could just mean they bought a picture from a stock service to provide a general representation of their variety rather than it being evidence that they have renamed an existing introduction.